Granted Patent
Utility
US 5,997,544 · App. 09/069,760
Process and device for producing sterile-packed bone cement
Inventors:
Berthold Nies, Rainer Specht
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Apr 30, 1998
Inventors
Berthold Nies
Rainer Specht
Assignee (at issue)
Merck Patent GmbH
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.